Periodic Checks And Adjustments - Yamaha YZ450FP 2023 Owner's Service Manual

PERIODIC CHECKS AND ADJUSTMENTS

SERVICING PARTS ..........................................................................................3-1
MAINTENANCE INTERVALS ...........................................................................3-2
MAINTENANCE INTERVALS.....................................................................3-2
PRE-OPERATION INSPECTION AND MAINTENANCE .................................3-6
GENERAL INSPECTION AND MAINTENANCE ........................................3-6
ENGINE.............................................................................................................3-7
ADJUSTING THE VALVE CLEARANCE....................................................3-7
VALVE CLEARANCE SHIM CHART ........................................................3-10
CHECKING THE ENGINE IDLING SPEED..............................................3-12
CHECKING THE THROTTLE GRIP .........................................................3-12
CHECKING THE SPARK PLUG...............................................................3-13
CHECKING THE ENGINE OIL LEVEL .....................................................3-13
CHANGING THE ENGINE OIL.................................................................3-14
ADJUSTING THE CLUTCH LEVER FREE PLAY ....................................3-15
ADJUSTING THE CLUTCH LEVER POSITION.......................................3-16
CLEANING THE AIR FILTER ELEMENT .................................................3-16
CHECKING THE THROTTLE BODY JOINT ............................................3-18
CHECKING THE FUEL LINE ...................................................................3-18
CHECKING THE CYLINDER HEAD BREATHER HOSE.........................3-19
CHECKING THE EXHAUST SYSTEM .....................................................3-19
CHECKING THE COOLANT LEVEL ........................................................3-21
CHECKING THE COOLING SYSTEM .....................................................3-22
CHANGING THE COOLANT ....................................................................3-22
CHASSIS ........................................................................................................3-24
ADJUSTING THE FRONT DISC BRAKE .................................................3-24
ADJUSTING THE REAR DISC BRAKE ...................................................3-24
CHECKING THE BRAKE FLUID LEVEL ..................................................3-24
CHECKING THE FRONT BRAKE PADS .................................................3-25
CHECKING THE REAR BRAKE PADS....................................................3-25
CHECKING THE FRONT BRAKE HOSE .................................................3-25
CHECKING THE REAR BRAKE HOSE ...................................................3-26
CHECKING THE BRAKE OPERATION ...................................................3-26
BLEEDING THE HYDRAULIC BRAKE SYSTEM.....................................3-26
DRIVE CHAIN SLACK ..............................................................................3-27
CHECKING AND ADJUSTING THE STEERING HEAD ..........................3-28
LUBRICATING THE STEERING HEAD ...................................................3-29
CHECKING THE FRONT FORK LEGS....................................................3-29
ADJUSTING THE FRONT FORK LEGS ..................................................3-29
CHECKING THE REAR SHOCK ABSORBER ASSEMBLY.....................3-31
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY ...................3-31
CHECKING THE SWINGARM OPERATION ...........................................3-33
LUBRICATING THE SWINGARM PIVOT ................................................3-33
CHECKING THE CONNECTING ARM AND RELAY ARM ......................3-33
CHECKING THE TIRES ...........................................................................3-33
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